多功能活门问题(67,8)
Publisher： 中航出版传媒有限责任公司
ISSN： 1000-4009
Source： 《国际航空》, Vol., Iss., 1998-05, pp. : 67-67
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.